The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is seeking proposals for the procurement of 12 units of a Discrete I/O Module, identified by NSN 7R-1680-015881640-P8 and reference number 1709973A. This procurement requires engineering source approval due to the flight-critical nature of the item, necessitating that only approved sources may submit proposals, as the technical data required for new sources is not readily available to the Government. Interested parties must provide comprehensive documentation to demonstrate their capability and experience in producing similar items, with a submission deadline of 45 days from the notice publication date. For further inquiries, potential bidders can contact Arianna G. Pilla at (215) 697-2198 or via email at ARIANNA.PILLA@NAVY.MIL.